75" WC to maintain strict combustion safety and manufacturer airflow requirements

it provides precise staging for Lennox packaged units and split systems

Universal Installation: Teeter-type terminals simplify wiring for both solid and stranded copper conductors

Can I adjust the blower shut-off delay on this model

minimizing downtime during part changeouts

Reznor 197118 Kit 320074-702 75" WC to maintain strictThe Reznor 197118 DJ20 High Altitude Kit is a critical field adjustment component for technicians servicing Reznor UDAP gas fired unit heaters installed at elevations between 2,001 and 6,000 feet. At higher altitudes, thinner air reduces the pressure differential required to safely prove the inducer motor's draft. This OEM Reznor kit replaces the standard factory settings with a specific DJ20 pressure switch calibrated to maintain the proper sequence